toxic and harmful substance 有毒 ; 有害物质 ; 有毒有害物质
Article 49 materials containing radioactivity in excess of standards or materials containing toxic and harmful substance easy to dissolve in the water may not be used in a Marine construction project.
第四十九条海洋工程建设项目，不得使用含超标准放射性物质或者易溶出有毒有害物质的材料。
No substance harmful or toxic to human is generated, no air and environment pollution occurs during manufacturing process of hydraulic cylinder coated with metal ceramic or ceramic.
涂镀金属陶瓷或陶瓷的涂层液压缸的制造工艺过程中，不产生对人类有害有毒的物质，不污染空气，不污染环境。
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